Hi Hredhin Harsha.

Like JEE or other exams, NATA doesn't conduct any counselling. The counselling for BArch courses, will be conducted by the state govt. or the college. And, you have to apply for the same, through their website or other means. The admission will be based on your NATA score.

https://engineering.careers360.com/articles/nata-counselling

Good Luck.